I've used an M6 as my main camera for years. I like it a lot and have no complaints. Once or twice I have tried a friend's MP and it is a wonderful feeling camera. Shutter noise is much quieter than the already quiet M6, film advance is beautifully smooth and the viewfinder is also superior. It won't take better photos than an M6 and will probably cost double, but I can understand why someone would want one.